The 2016 Hyundai Elantra is available with a 6-speed manual, a 6-speed automatic, or a 7-speed EcoShift dual-clutch transmission (DCT), paired with its 1.8L or 2.0L four-cylinder engine. The dual-clutch variant has been noted for shuddering and hesitation at low speeds, prompting Hyundai to issue technical service bulletins and software updates. The 6-speed automatic is the most trouble-free option among the three. Using SK Hyundai ATF SP-IV fluid is essential for automatic variants. When replacing any Elantra transmission, confirm the exact variant and model trim for proper fitment. Remanufactured units with updated components are recommended for the most reliable long-term repair solution.